condition mean min max ZT0-3 0.0317054 0.0317054 0.0317054 ZT4-7 0.02001385 0.02001385 0.02001385 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0464325 0.0464325 0.0464325 ZT16-19 0.0348894 0.0348894 0.0348894 ZT20-23 0.01748405 0.01748405 0.01748405